Answer :
The central idea focused on emphasizing on faith, the power of god's grace and centralizing the Bible.
Explanation:
Martin Luther and John Calvin were the greatest protestant reformers. : John Calvin and Martin Luther broke from the Catholic Church by seeing the corruption in it. Luther believed that the individual has control over what happens in his life. Calvin believes in the doctrine of predestination.
Most Protestant reformers appeal to various groups across Europe because peasants and artisans were the victims of violent social and economic dislocation. The growing population led many to move from rural to towns. With declining wages, increasing taxation, rising prices caused a wide gap between the poor and the rich. Poverty, resentment and social discontent if the mass were some of the reason for their success.
Protestant ideas welcome to educated people and urban residents because if the printing press. Rulers also attracted because it brought a religious change in their kingdoms which allowed rulers to split from the Catholic Church and hold its supreme power in the state.
